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What color is a solo cup?

Solo cups are ubiquitous at parties and gatherings across college campuses and backyards in America. The iconic red disposable cup has become a cultural symbol, representing carefree youth and the joys of drinking games. But despite its popularity, not everyone knows the specific color of a solo cup or the history behind it.

The Original Solo Cup Colors

The solo cup was invented in the 1930s by Leo Hulseman, then the owner of the Illinois-based Solo Cup Company. Hulseman was inspired by his wife’s complaint about broken glasses at parties to create a disposable cup made from paper. The first solo cups produced were a light blue color. It wasn’t until the 1950s that Hulseman decided to switch to red, with the goal of hiding stain marks and making the cups more festive for holiday parties.

From the 1950s up through the 1980s, bright fire engine red was the solo cup’s signature color. The bold, opaque red made the cups eye-catching and synonymous with casual gatherings where food and drink flowed freely. While red remained the most popular option, Solo also began offering its cups in blue, yellow, and other colors to provide variety for different occasions.

The Modern Solo Cup Color Palette

Today Solo produces its cups in a full spectrum of colors for customers to choose from. The company’s current color lineup includes:

  • Classic red – This shade has more of a burnt orange tone compared to the original fire engine red, but remains the most popular choice.
  • Blue – Ranging from navy to robin’s egg light blue.
  • Pink – Both soft pastel and brighter neon available.
  • Yellow – Vivid daisy yellow.
  • Green – Options from lime green to forest green.
  • Purple – From lilac to grape purple.
  • Black – A sleek, modern solid black.
  • White – Crisp, bright white.
  • Clear – Transparent cups for casual or formal occasions.

Customers can choose from solid color cups or ombre blends that fade between two color tones. Some of the most popular ombre combos include red/pink, blue/purple, and yellow/green fades.

Examining the Iconic Red Solo Cup

Though other colors are available, red remains the quintessential solo cup color. But even within red shades, Solo offers some variety:

Solo Cup Product Line Red Color Name Hex Color Code
18 oz. Party Cup Fire Engine Red #FF000D
20 oz. Restaurant Cup Valentine Red #FF0048
12 oz. Plastic Cup Classic Red #ED1B23
16 oz. Beer Cup Bold Red #CE2029

As this table shows, while all a shade of red, Solo uses different hues and tones across its product lines. The 18 oz. party cup is the brightest fire engine red, made to look bold and youthful. The 20 oz. restaurant cup is a slightly darker and more sophisticated Valentine red. The 12 oz. plastic cups offer a muted classic red, and the 16 oz. beer cups are a deeper wine-like bold red.

Red Solo Cup Meanings and Associations

It’s not just the specific red tone that makes the solo cup iconic – it’s the meanings and associations that come with a red cup. A few reasons why red remains the top choice:

  • Nostalgia – Harkens back to the original red cups that have been used for generations.
  • Festive – Bright red evokes feelings of fun, energy, and celebration.
  • Masculine – The bold tone is more gender-neutral than lighter or pastel shades.
  • Confidence – Red gives off an air of being casual, carefree, and confident.
  • Rebellion – Red has fiery, rebellious connotations perfect for youth culture.

Market research shows that customers choose red solo cups because they symbolize being young, having fun, bonding with others, and not taking themselves too seriously – all associations people want at parties.

Red Solo Cups in Pop Culture

With its strong associations and connections to celebration, it’s no wonder red solo cups are ubiquitous in movies, TV, and music related to partying. A few notable examples include:

  • Film – Comedies like American Pie, 21 and Over, and Old School prominently feature red cups at wild house parties.
  • TV – On teen shows like Gossip Girl, Glee, and Riverdale, high schoolers often drink from red solo cups at parties.
  • Music – Songs like “Red Solo Cup” by Toby Keith and “Beer in the Bar” by Luke Bryan romanticize the red cup party lifestyle.

With these pop culture associations, a red solo cup visually conveys images of drunken fun and debauchery. With just a brief glimpse of a red cup, audiences immediately know a party is going down.

How Dyes Create Red Solo Cups

Of course, solo cups aren’t actually made from paper anymore. Today, most solo cups are injection molded from polypropylene plastic resin to create more durability and resistance to condensation. After molding the cups, Solo then uses a specific process to dye them red:

  1. Cups start out as raw, neutral plastic material with no color.
  2. Liquid coloring is injected and mixed into the plastic before molding.
  3. Heat is applied during molding to bind the dye with the plastic polymers.
  4. The newly molded red cups are inspected for proper color uniformity.
  5. Any adjustments are made to the dye recipe and process as needed.

This process allows the red color to permate throughout the entire cup material for a bold uniform shade. Different dyes and color combinations are used to create custom ombre fades or lighter tints of red in the cups as well.

Environmental Impact of Red Solo Cups

While synonymous with fun times, the billions of solo cups produced each year do have environmental downsides. As single-use plastics, red solo cups contribute to landfill waste and plastic pollution when improperly disposed:

  • Made from #6 polystyrene plastic – Not recyclable in many municipal systems.
  • Small size leads to litter and unable to decompose.
  • Chemical dyes may leech out as cups break down over decades.
  • Manufacturing uses oil and emits greenhouse gases linked to climate change.

However, reusable options are gaining popularity as eco-conscious consumers seek sustainable alternatives. Some choices include:

  • Plastic party cups made with recycled PET plastic.
  • Plant-based plastic cups that biodegrade.
  • Reusable plastic cups.
  • Reusable stainless steel cups.
  • Compostable paper cups.

While disposable red solo cups will likely remain popular for convenience, reusable and compostable vessels help reduce waste and environmental impact.


The iconic red solo cup has carved out a unique place in American culture. Though Solo offers a rainbow of colors, red remains the top choice for its nostalgic ties and festive associations. Specific hues of red strike the perfect balance between feeling both casual and sophisticated. The red solo cup conveys notions of fun, freedom, and youth. Of course, the environmentally conscious now have many reusable and sustainable options, but red solo cups remain the standard vessel for backyard barbecues, college ragers, and everything in between.